JP2013176131A - Head-mounted type display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reproducing apparatus capable of automatically stopping reproduction at proper timing without letting a user feel a sense of incongruity.SOLUTION: A reproducing apparatus for reproducing content data containing at least one of voice and an image comprises: a reproducing section for reproducing the content data; and a control section for correcting stop time when reproduction of the content data by the reproducing section is stopped automatically at predetermined stop time.

Description

  The present invention relates to a playback apparatus that plays back content data including at least one of sound and image.

  In recent years, display devices such as a head-mounted display that can be mounted on a user's head have been considered due to the miniaturization of display elements. Such a display device tends to cause fatigue for users who are not accustomed to using it. In addition, a user who is not accustomed to use may not be aware of being tired. Therefore, in the invention of Patent Document 1, such a problem is solved by interrupting image display at a predetermined time.

JP 2004-207772 A

  However, as in Patent Document 1, if the display of an image or the reproduction of sound is interrupted within a predetermined time regardless of the content data, the user may feel uncomfortable.

  An object of the present invention is to realize a playback device that can automatically stop playback at an appropriate timing without causing the user to feel uncomfortable.

  The playback device of the present invention is a playback device that plays back content data including at least one of sound and image, and a playback unit that plays back the content data, and playback of the content data by the playback unit at a predetermined stop time. And a control unit that corrects the stop time when the automatic stop is performed.

  Preferably, the control unit may correct the stop time based on information of the content data to be reproduced by the reproduction unit.

  Preferably, the control unit may detect a scene change in the content data and correct the stop time based on a scene change position.

  Preferably, the control unit may correct the stop time based on control information of the content data attached to the content data.

  In addition, preferably, a reception unit that receives a user instruction to extend the predetermined stop time may be provided, and the control unit may correct the stop time based on the user instruction.

  Preferably, the reception unit may receive the user instruction within a predetermined time including at least one of before and after the predetermined stop time.

  Preferably, the image processing apparatus includes a display unit that displays the image and a recognition unit that recognizes a use history of the display unit, and the control unit determines the predetermined stop time based on the use history. Also good.

  Preferably, the recognition unit recognizes, as the use history, at least one of a use count, a use time in one use, a cumulative use time, and an adjustment required time of the display unit before use. May be.

  Preferably, the control unit includes a display unit that displays the image, an acquisition unit that acquires user information, and a determination unit that determines an observable time of the image based on the user information. The predetermined stop time may be determined according to the observable time.

  Preferably, the acquisition unit may acquire, as the user information, whether or not the user has used eyepiece optical equipment.

  Preferably, the acquisition unit may acquire at least one of the user's sex and age as the user information.

  Preferably, a selection unit that selects whether to perform control by the control unit based on an instruction from the user may be further provided.

  Preferably, at least one of a display unit that is mounted on the user's head and projects a virtual image in front of the user's eyes and an audio output unit that outputs audio, and at least the display unit and the audio output unit. One may be equipped with the mounting part which can be mounted | worn with the said user's head.

  According to the present invention, it is possible to realize a playback device capable of automatically stopping playback at an appropriate timing without causing the user to feel uncomfortable.

1 is an external view of a head-mounted display 100. FIG. It is a figure shown about the relationship between the image display element which the display part 112 has, and a user's eyes. It is the side view which looked at the head mounted display 100 from the direction of arrow S of FIG. 3 is a functional block diagram of the head-mounted display 100. FIG. It is a flowchart which shows operation | movement of the control part 117 at the time of content data reproduction | regeneration. It is a figure explaining the determination of the viewable time A. 6 is a diagram illustrating a display example on a display unit 112. FIG. It is a flowchart which shows operation | movement of the control part 117 at the time of content data reproduction | regeneration. 6 is a diagram illustrating a display example on a display unit 112. FIG. It is a figure explaining user information. It is a flowchart explaining the application example of this invention. It is another flowchart explaining the application example of this invention.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a head-mounted display will be described as an example of the playback apparatus of the present invention.

  FIG. 1 is an external view of a head-mounted display 100. As shown in FIG. 1, the head-mounted display 100 includes a speaker 111, a coupling unit 111 a, a display unit 112, a support arm 112 a, and an operation unit 113. At the time of wearing, the speaker 111 is attached to both ears of the user, and the speaker 111 is held on both ears of the user by the elastic force of the connecting portion 111a. The display unit 112 includes an image display element (not shown) such as a transmissive LCD or an organic EL display, and an optical system (not shown) that enlarges and projects the image of the image display element onto the user's eyes. Note that an image display element such as a reflective LCD or a self-luminous element arranged two-dimensionally may be used as the image display element.

  The display unit 112 is formed integrally with the support arm 112a. The support arm 112a slides and moves in the direction of arrow a in FIG. The display unit 112 and the support arm 112a are arranged at a position indicated by a solid line in FIG. In addition, the display unit 112 and the support arm 112a are rotated about the axis b when the image is not observed, and the display unit 112 is arranged at the top of the user's head (position indicated by a dotted line in FIG. 1). . As a result, the display unit 112 is arranged at the top of the user's head when not observing the image, and does not block the user's field of view. Further, the support arm 112a can be rotated in the direction of the arrow c in FIG. 1 with respect to the speaker 111 about the axis b in FIG. 1 by a driving unit (not shown). Therefore, the position of the display unit 112 can be correctly adjusted in front of the user's eyes by the above-described slide in the direction of the arrow a and rotation in the direction of the arrow c.

  Further, the display unit 112 includes a slide member 112b and a spherical bearing 112c between the support arm 112a, and a more detailed position and inclination can be adjusted based on a user operation. FIG. 2 shows the relationship between the image display element of the display unit 112 and the user's eyes. As shown in the side view of FIG. 2A, the display unit 112 can be slid in the direction of the arrow a by sliding the support arm 112a in the direction of the arrow a, and the front-rear position with respect to the user's eyes is adjusted. Is possible. The display unit 112 can be rotated in the direction of the arrow e by the spherical bearing 112c, and can also be rotated in the direction of the arrow f by the spherical bearing 112c as shown in the top view of FIG. 2B. Therefore, it is possible to adjust the inclination with reference to the user's eyes. Further, as shown in the front view of FIG. 2C, the display unit 112 can be slid in the direction of the arrow g by the slide member 112b, and the left and right positions with reference to the user's eyes can be adjusted. Further, as shown in the front view of FIG. 2D, the display unit 112 can be rotated in the direction of the arrow i by the spherical bearing 112c. Therefore, the inclination in the plane perpendicular to the optical axis of the user's eyes can be adjusted.

  As shown in FIG. 1, the operation unit 113 is disposed near the user's temporal region and the right-ear speaker 111. 3 is a side view of the head-mounted display 100 as viewed from the direction of the arrow S in FIG. As shown in FIG. 3, the operation unit 113 includes a power button 113a, a cross button 113b, and a menu button 113c. The operation unit 113 may be provided outside the head-mounted display 100 like a remote controller. In this case, the remote controller and the head mounted display 100 may be connected wirelessly or may be connected by wire.

  FIG. 4 is a functional block diagram of the head-mounted display 100.

  As shown in FIG. 4, in addition to the speaker 111, the display unit 112, and the operation unit 113, the head-mounted display 100 includes a display control unit 114 that controls display on the display unit 112, a computer via a cable, and the like. Each unit includes a connection unit 115 connected to the external device, a storage unit 116 that stores image information to be displayed on the display unit 112, audio information to be output to the speaker 111, and a control unit 117 that controls each unit. Hereinafter, image information, audio information, image information with audio, and the like are collectively referred to as “content data”.

  The control unit 117 is connected to each unit of the display control unit 114, the connection unit 115, and the storage unit 116. The output of the display control unit 114 is connected to the display unit 112. The control unit 117 detects the state of the operation unit 113, and reproduces sound on the speaker 111 and displays an image on the display unit 112 in accordance with a user instruction performed via the operation unit 113. The control unit 117 includes a timer (not shown) inside. Furthermore, the control unit 117 also records and recognizes a usage history that is a feature of the present invention. The usage history is a usage history related to image display using the display unit 112. That is, when the head-mounted display 100 is used for reproduction of only audio information, it is not included in this usage history. The usage history includes the number of times of use, the usage time in one usage, the cumulative usage time, the time required for adjustment of the display unit 112 before use, and the like. As for the time required for adjustment, the control unit 117 detects the adjustment (see FIGS. 1 and 2) of each part of the display unit 112 described above, and measures and records the time required for the adjustment. To do. The control unit 117 updates the usage history each time the head-mounted display 100 is used by the user.

  The operation of the control unit 117 when reproducing content data in the head-mounted display 100 having the above-described configuration will be described with reference to the flowchart of FIG.

  In step S <b> 1, the control unit 117 determines whether image reproduction is instructed via the operation unit 113. When the image reproduction is not instructed, the control unit 117 performs the same processing as that of a known technique according to the instruction. For example, when audio playback is instructed, audio playback is performed in the same manner as in the known technology. When the image reproduction is instructed, the control unit 117 proceeds to step S2.

  In step S2, the control unit 117 reads the usage history. In the present embodiment, a case where the number of times of use is read will be described as an example.

  In step S3, the control unit 117 determines the viewable time A. The control unit 117 determines the viewable time A based on the number of uses recognized in step S2. FIG. 6A shows an example of the relationship between the number of uses and the viewable time A. As shown in FIG. 6A, the number of uses and the viewable time A have a positive correlation. As the number of uses increases, the viewable time A becomes longer. However, in consideration of user fatigue, it is preferable to set an upper limit (Nmax) for the viewable time A.

  Furthermore, when the viewable time A is determined, the viewable time A may be determined in consideration of information on the content data to be reproduced. For example, the viewable time A may be determined based on control information attached to the content data. When the chapter information exists as control information attached to the content data, the viewable time A may be determined at the time when the viewable time elapses from the playback start time in accordance with the chapter change near that time. If playback is stopped after determining the viewable time A regardless of the contents of the content data, the user may feel uncomfortable. However, by determining the viewable time A in this way, playback can be stopped without causing the user to feel uncomfortable. FIG. 6B shows an example of chapter information. When the content data to be reproduced is composed of a plurality of chapters as shown in FIG. 6B, the viewable time A is corrected in accordance with the chapter structure. For example, in the case where the viewable time A determined in accordance with the relationship of FIG. 6A has elapsed from the start of playback in the middle of chapter X of FIG. 6B, the viewable time in accordance with the start point or end point of chapter X A is determined. When the viewable time A determined according to the relationship of FIG. 6A is before the center point of chapter X, the viewable time A is determined according to the starting point of chapter X, and determined according to the relationship of FIG. When the viewable time A is after the center point of chapter X, the viewable time A may be determined in accordance with the end point of chapter X.

  Alternatively, a scene change in the content data to be reproduced may be detected, and the viewable time A may be determined based on the scene change position. It is preferable to detect a scene change in the content data based on a change in brightness or the like, and to correct the viewable time A determined according to the relationship of FIG. By determining the viewable time A in this way, it is possible to stop the reproduction without causing the user to feel uncomfortable similarly to the above-described example of the chapter information.

  In step S <b> 4, the control unit 117 starts image reproduction via the display control unit 114. Note that when the content data to be played back is image information with sound, the control unit 117 also starts to play back sound through the speaker 111.

  In step S5, the control unit 117 starts a timer in the control unit 117.

  In step S6, the control unit 117 determines whether or not timer = A−T1. T1 is a predetermined time (for example, “5 minutes”). The control unit 117 waits until the timer = A−T1, and proceeds to step S7 when determining that the timer = A−T1.

  In step S7, the control unit 117 issues a warning. The warning is realized, for example, by displaying a message on the display unit 112. FIG. 7A shows a display example of a warning. In the example of FIG. 7A, an image (i1) indicating a warning is superimposed on the currently displayed image. Note that the example of FIG. 7A is an example, and an image that prompts the user to stop observing the image (for example, “please stop observing the image because fatigue is predicted”) may be displayed.

  Note that the warning described in step S7 is performed prior to the viewable time A determined in step S3 by a time T1. Moreover, you may utilize the audio | voice information via the speaker 111 for this warning.

  In step S8, the control unit 117 determines whether or not timer = A. The control unit 117 waits until the timer = A, and proceeds to step S9 when determining that the timer = A.

  In step S <b> 9, the control unit 117 ends the reproduction of the image via the display control unit 114. When the content data to be reproduced is image information with audio, the control unit 117 also ends the audio reproduction via the speaker 111. When the reproduction of the image is terminated, as shown in FIG. 7B, for example, an image (i2) for notifying the user that the reproduction of the image is terminated may be superimposed on the displayed image. . Further, it may be configured to confirm with the user whether or not the reproduction of the image is finished and to finish the reproduction of the image after the user is authenticated. The images (i1, i2, i3 described later) are recorded in advance in a memory (not shown) in the control unit 117.

  As described above, according to the first embodiment, the display unit that displays an image is provided, the use history of the display unit is recognized, and the observable time of the image by the user is determined based on the recognized use history. . Then, the display of the image on the display unit is stopped according to the determined observable time. Accordingly, by determining the observable time according to the usage history of the head-mounted display for each user and stopping the display of the image, it is possible to realize a response to fatigue according to the user.

  Further, according to the first embodiment, the user is prompted to end the image observation according to the determined observable time. Accordingly, by determining the observable time according to the usage history of the head-mounted display for each user and prompting the user to end the observation of the image, it is possible to realize a response to fatigue according to the user.

  Further, according to the first embodiment, at least one of the usage count, the usage time in one usage, the cumulative usage time, and the adjustment time of the display unit before use is recognized as the usage history. Therefore, the viewable time according to the user can be determined.

  In addition, according to the first embodiment, when the reproduction of content data is automatically stopped at a predetermined stop time, the stop time is corrected. Therefore, the reproduction can be automatically stopped at an appropriate timing without causing the user to feel uncomfortable.

  Further, according to the first embodiment, the stop time is corrected based on the information of the content data to be reproduced. Therefore, playback can be automatically stopped according to the content data.

  Further, according to the first embodiment, a scene change in the content data is detected, and the stop time is corrected based on the scene change position. Therefore, the reproduction can be automatically stopped in accordance with the scene change of the content data.

  Further, according to the first embodiment, the stop time is corrected based on the control information of the content data incidental to the content data. Therefore, the reproduction can be automatically stopped according to the content data.

  In the first embodiment, the number of times of use has been described as an example of the use history, but viewing is performed based on any of the use time, accumulated use time, and adjustment time required for the display unit before use. The possible time may be determined. In addition, when the use time in one use is short, it may be estimated that the user is trying to use appropriately and the viewable time may be lengthened. Moreover, since it can be estimated that the user is accustomed to using the head-mounted display as the accumulated use time is longer, the viewable time is preferably increased. In addition, when the use time in one use is short, it is presumed that the user is likely to get tired, and it is preferable to set the viewable time short even if the cumulative use time is long. Moreover, since it can be estimated that the user is accustomed to using the head-mounted display as the adjustment required time is shorter, the viewable time is preferably increased. Further, the viewable time may be determined by combining two or more factors among the number of times of use, the time of use in one use, the accumulated time of use, and the time required for adjustment of the display unit before use. In this case, it is only necessary to prioritize or weight the plurality of factors to determine the viewable time.

  In the first embodiment, an example in which the reproduction of the image is stopped in step S9 after the warning is performed in step S7 in FIG. 5 is described. However, only the warning may be configured, or the image may be displayed without performing the warning. The reproduction may be stopped.

Second Embodiment
The second embodiment of the present invention will be described below with reference to the drawings. In the second embodiment, only different parts from the first embodiment will be described. The head mounted display of the second embodiment has the same configuration as the head mounted display 100 of the first embodiment. Therefore, illustration and description of the configuration of the head-mounted display of the second embodiment are omitted, and description will be made using the same reference numerals as those of FIGS. 1 and 3 of the first embodiment.

  The operation of the control unit 117 during content data reproduction in the second embodiment will be described with reference to the flowchart of FIG.

  In step S <b> 21, the control unit 117 determines whether image reproduction is instructed via the operation unit 113. When the image reproduction is not instructed, the control unit 117 performs the same processing as that of a known technique according to the instruction. For example, when audio playback is instructed, audio playback is performed in the same manner as in the known technology. When the image reproduction is instructed, the control unit 117 proceeds to step S22.

  In step S22, the control unit 117 acquires user information. In this embodiment, an example in which the presence / absence of use experience and age of eyepiece optical devices (head-mounted display, camera, binoculars, microscope, etc.) and age are acquired as user information will be described as an example. The control unit 117 displays the images shown in FIGS. 9A and 9B on the display unit 112 via the display control unit 114, and prompts input of user information. This image is recorded in advance in a memory (not shown) in the control unit 117. The user operates the operation unit 113 while viewing the display unit 112 to input user information. The input (acquisition) of user information may be performed in advance instead of this timing.

  In step S23, the control unit 117 determines the viewable time A. The control unit 117 determines the viewable time A based on the user information acquired in step S22. The control unit 117 records an evaluation value corresponding to user information in a memory (not shown) in the control unit 117 in advance. FIG. 9C shows an example of evaluation values (F1 to F7). Then, the control unit 117 determines the viewable time A based on this evaluation value. In addition, since it can be estimated that the user is accustomed to the use of the head-mounted display as the experience of using the eyepiece optical device increases, an evaluation value that determines the viewable time A is prepared. Moreover, since it can be estimated that the eye adjustment function and the like decrease as the age increases, an evaluation value for determining the viewable time A is prepared. As in the first embodiment, it is preferable to set an upper limit for the viewable time A in consideration of user fatigue.

  Furthermore, when the viewable time A is determined, the viewable time A may be determined in consideration of the content data playback start time and the content data to be played back, as in the first embodiment. By determining the viewable time A in consideration of the information of the content data to be played, the playback can be stopped without making the user feel uncomfortable, as in the first embodiment.

  In step S <b> 24, the control unit 117 starts image reproduction via the display control unit 114. Note that when the content data to be played back is image information with sound, the control unit 117 also starts to play back sound through the speaker 111.

  In step S25, the control unit 117 starts a timer in the control unit 117.

  In step S26, the control unit 117 determines whether or not timer = A−T2. T2 is a predetermined time (for example, “5 minutes”). The control unit 117 waits until the timer = A−T2, and proceeds to step S27 when determining that the timer = A−T2.

  In step S27, the control unit 117 starts displaying the remaining time until the viewable time A is reached. As shown in FIG. 10A, the control unit 117 superimposes and displays an image (i3) indicating the remaining time on the currently displayed image. Then, the display is changed according to the decrease in the remaining time. The remaining time display is performed prior to the viewable time A determined in step S23 by a time T2. Moreover, you may utilize the audio | voice information via the speaker 111 instead of remaining time display. In addition to the remaining time display, voice notification may be performed. The image (i3, i4, i5 described later) is recorded in advance in a memory (not shown) in the control unit 117.

  In step S28, the control unit 117 starts accepting with the extension button. The extension button is a button for accepting a user instruction to extend the viewable time A determined in step S23. If the user feels that the remaining time presented in step S27 is not preferable, the user can extend the viewable time A by a certain time (for example, “10 minutes”) by pressing the extension button. In the present embodiment, the extension button is a central button of the cross button 113b of the operation unit 113. Another member may be an extension button, or a dedicated extension button may be provided in the operation unit 113. Note that the reception by the extension button is started prior to the viewable time A determined in step S23 by a time T2. In addition, at the start of reception by the extension button, for example, as shown in FIG. 10B, an image (i4) notifying the user that reception by the extension button is started may be displayed superimposed on the displayed image. good.

  In step S29, the control unit 117 determines whether or not the extension button has been pressed. If the control unit 117 determines that the extension button has been pressed, the control unit 117 proceeds to step S30. On the other hand, if it is determined that the extension button is not pressed even after waiting for a predetermined time, the control unit 117 proceeds to step S31 described later.

  In step S30, the control unit 117 corrects the timer or the viewable time A. The control unit 117 subtracts a time (for example, “10 minutes” or the like) previously associated with one press of the extension button from the timer or adds the time to the viewable time A to obtain the viewable time A. To correct.

  In step S31, the control unit 117 determines whether or not timer = A. If the control unit 117 determines that the timer = A, the process proceeds to step S32. On the other hand, if it is determined that the timer does not become A even after waiting for a predetermined time, the control unit 117 returns to step S29 and determines again whether or not the extension button has been pressed. That is, in step S29 to step S31, the control unit 117 performs parallel monitoring of whether or not the extension button has been pressed and whether or not timer = A.

  In step S32, the control unit 117 ends the reproduction of the image via the display control unit 114. When the content data to be reproduced is image information with audio, the control unit 117 also ends the audio reproduction via the speaker 111. When the reproduction of the image is finished, for example, as shown in FIG. 10C, an image (i5) for notifying the user that the reproduction of the image is finished may be superimposed on the displayed image. . Further, it may be configured to confirm with the user whether or not the reproduction of the image is finished and to finish the reproduction of the image after the user is authenticated.

  As described above, according to the second embodiment, the display unit that displays an image is provided, user information is acquired, and the observable time of the image by the user is determined based on the acquired user information. Then, the display of the image on the display unit is stopped according to the determined observable time. Accordingly, by determining the observable time according to the user information for each user and stopping the display of the image, it is possible to realize the response to fatigue according to the user.

  Further, according to the second embodiment, the user is prompted to end the image observation according to the determined observable time. Accordingly, by determining the observable time according to the user information for each user and prompting the end of the image observation, it is possible to realize the response to fatigue according to the user.

  Further, according to the second embodiment, the presence / absence of the user's experience in using eyepiece optical equipment is acquired as user information. Therefore, it is possible to determine an appropriate viewable time according to the user.

  Moreover, according to 2nd Embodiment, at least one of a user's sex and age is acquired as user information. Therefore, it is possible to determine an appropriate viewable time according to the user.

  In addition, according to the second embodiment, when the reproduction of content data is automatically stopped at a predetermined stop time, the stop time is corrected. Therefore, the reproduction can be automatically stopped at an appropriate timing without causing the user to feel uncomfortable.

  Moreover, according to 2nd Embodiment, the reception part which receives the user instruction | indication which extends a predetermined stop time is provided, and a stop time is corrected based on a user instruction. Therefore, it is possible to extend the image reproduction until the user does not feel uncomfortable according to the content data.

  In the second embodiment, the user information includes the presence / absence of use of an eyepiece optical device (head-mounted display, camera, binoculars, microscope, etc.) and age as an example. The available viewing time may be determined based on whether or not the glasses are used, the degree of correction of the left and right eyes of the user (difference between the naked eye and the corrected eye, etc.), the effect of the user, the usage pattern, and the like. In addition, as a usage pattern, whether it is used in a calm environment such as a residence or when going out, the eye on the opposite side to the display unit 112 (right eye in this embodiment) is closed at the time of use. If the user information is used as user information or the like, it is possible to realize a response to fatigue according to the user. When using in a calm environment such as a residence, it is better to make the viewable time longer than when using it on the go. Further, when using the camera with the eyes on the side opposite to the display unit 112 closed during use, it is easy to get tired compared to using the eyes on the other side open, so that the viewable time should be shortened. Further, when the viewable time is determined by combining a plurality of factors, the viewable time may be determined by assigning priorities to or weighting the plurality of factors.

  In the second embodiment, the remaining time display is started in step S27 in FIG. 8 and the image reproduction is stopped in step S32. However, only the remaining time display may be displayed, or the remaining time may be displayed. A configuration may be adopted in which image reproduction is stopped without displaying.

  In the second embodiment, the example in which the extension of the viewable time is received by the extension button from the time T2 before the viewable time to the end of the image reproduction is shown. However, the viewable time after the image reproduction is finished is also shown. It is good also as a structure which receives the extension of. As described above, when the user instruction is received within a predetermined time including at least one of before and after the viewable time (predetermined stop time), and the image reproduction ends at a timing unfavorable for the user. In addition, it is possible to extend the image reproduction until the user does not feel uncomfortable according to the content data. When an extension of the viewable time is accepted even after the end of the image reproduction, it is preferable to display a still image like a pause at the end of the image reproduction described in step S32. In addition, it is preferable that the extension of the viewable time is accepted only for a predetermined time (for example, “3 minutes”) after the end of the image reproduction.

  In the first embodiment and the second embodiment, an example in which the viewable time is always determined at the time of image reproduction and warning or automatic reproduction of image reproduction is performed is shown. However, the user determines whether or not to perform such processing. It is preferable to make the selection possible. Further, the method for determining the viewable time may be selectable by the user.

  Moreover, you may perform combining the process demonstrated in 1st Embodiment and 2nd Embodiment. For example, the viewable time may be determined by combining the use history described in the first embodiment and the user information described in the second embodiment.

  Further, the invention described in the first embodiment and the second embodiment can be similarly applied to the case where the reproduction of content data is automatically stopped at a predetermined stop time.

  For example, when the playback of content data is automatically stopped in accordance with the decrease in the remaining battery level, the method for determining the viewable time described in the present invention and the technology for extending the viewable time using the extension button can be applied. it can.

  FIG. 11 is a flowchart illustrating the operation of the control unit 117 when the image reproduction is stopped in accordance with the decrease in the remaining battery level.

  In step S <b> 41, the control unit 117 determines whether image reproduction has been instructed via the operation unit 113. When the image reproduction is not instructed, the control unit 117 performs the same processing as that of a known technique according to the instruction. For example, when audio playback is instructed, audio playback is performed in the same manner as in the known technology. When the image reproduction is instructed, the control unit 117 proceeds to step S42.

  In step S <b> 42, the control unit 117 starts image reproduction via the display control unit 114. Note that when the content data to be played back is image information with sound, the control unit 117 also starts to play back sound through the speaker 111.

  In step S43, the control unit 117 determines whether or not the battery remaining amount <E. The remaining battery level E is a predetermined threshold value. For example, it is necessary to urge the user to stop image playback (for example, “the image can be played for about another hour”). Is a value indicating When it is determined that the remaining battery level <E, the control unit 117 proceeds to step S44, and when it is determined that the remaining battery level ≧ E, the control unit 117 proceeds to step S45.

  In step S44, the control unit 117 estimates the reproducible drive time based on the remaining battery level, and determines the viewable time A within a range not exceeding the reproducible drive time.

  In step S45, the control unit 117 determines the viewable time A according to the remaining battery level, as in the first embodiment.

  In step S46, the control unit 117 corrects the viewable time A determined in step S44 or step S45. As described in step S3 of the first embodiment, the control unit 117 corrects the viewable time A in consideration of the information of the content data to be reproduced. For example, the viewable time A may be corrected based on control information of content data incidental to the content data, or a scene change in the content data to be reproduced is detected, and the viewable time A based on the scene change position. May be determined.

  In step S47 to step S51, the control unit 117 performs the same processing as in step S5 to step S9 (FIG. 5) of the first embodiment.

  With the above processing, even when content data playback is automatically stopped in accordance with a decrease in the remaining battery level, playback can be stopped without causing the user to feel uncomfortable.

  In addition, when the reproduction of the content data is automatically stopped according to the remaining battery level, and the technology related to the extension of the viewable time A by the extension button is applied, the remaining battery level is determined by repeatedly pressing the extension button. In order to prevent the battery from being reduced too much, it is preferable to adopt a configuration in which reception by the extension button is prohibited in accordance with the remaining battery level.

  In addition, as described in the publicly known technology, the present invention can also be applied to a case where display of an image is interrupted at a predetermined time and an image reproduction is stopped according to a viewable time set by the user. The techniques relating to the method for determining the viewable time A described and the extension of the viewable time A using the extension button can be applied.

  FIG. 12 is a flowchart showing the operation of the control unit 117 when the image reproduction is stopped according to the time B preset by the user.

  In step S <b> 61, the control unit 117 determines whether image reproduction is instructed via the operation unit 113. When the image reproduction is not instructed, the control unit 117 performs the same processing as that of a known technique according to the instruction. For example, when audio playback is instructed, audio playback is performed in the same manner as in the known technology. When the image reproduction is instructed, the control unit 117 proceeds to step S62.

  In step S <b> 62, the control unit 117 starts reproduction of an image via the display control unit 114. Note that when the content data to be played back is image information with sound, the control unit 117 also starts to play back sound through the speaker 111.

  In step S63, the control unit 117 starts a timer in the control unit 117. Note that, as described in step S3 of the first embodiment, the time B preset by the user may be corrected in consideration of the information of the content data to be reproduced. By correcting the time B preset by the user in consideration of the information of the content data to be reproduced, the reproduction can be stopped without making the user feel uncomfortable.

  In step S64 to step S70, the control unit 117 performs the same processing as in step S26 to step S32 (FIG. 8) of the second embodiment.

  By the above processing, when the reproduction of the content data is automatically stopped according to the time set in advance by the user, even when the image reproduction is terminated at a timing unfavorable for the user, the content data is changed. Accordingly, the image reproduction can be extended until the user does not feel uncomfortable. In addition, playback can be stopped without causing the user to feel uncomfortable.

  Furthermore, the present invention can be similarly applied to a head-mounted display that automatically controls the reproduction of content data by program control according to the user's behavior pattern and the like.

  Further, in the first embodiment and the second embodiment, when a plurality of users share the head-mounted display 100, the usage history and user information may be recorded and managed for each user.

  In the first embodiment and the second embodiment, the example in which the count of the timer is increased and the observable time is measured is shown. However, the start time of the timer is set to the observable time (time set by the user). The timer count may be reduced as time passes, and the image may be stopped when the timer reaches zero.

  Further, the present invention can be similarly applied to a head-mounted display other than the configuration described in the first embodiment and the second embodiment. For example, the present invention can be similarly applied to a head-mounted display in which the display unit is slid in and out instead of an overhead arm-shaped head-mounted display that flips the display unit in the direction of the top of the head. In addition, the present invention can be similarly applied to a head-mounted display configured to acquire content data to be played back from an external playback device (such as a DVD player).

  In the first embodiment and the second embodiment, the example in which the display unit is provided on only one side has been described. However, the present invention can be similarly applied to a head-mounted display having display units on both sides.

  In the first embodiment and the second embodiment, the head mounted display has been described as an example of the playback apparatus of the present invention. However, the present invention is applied to a playback apparatus other than the head mounted display. The same can be applied. For example, the present invention can be similarly applied to a mobile phone, a portable playback device, a game device, and the like having an image playback function and an audio playback function.

DESCRIPTION OF SYMBOLS 100 ... Head-mounted display, 111 ... Speaker, 112 ... Display part, 113 ... Operation part, 116 ... Memory | storage part, 117 ... Control part

The present invention relates to a head-mounted display that reproduces content data including at least one of sound and image.

An object of the present invention is to realize a head-mounted display capable of automatically stopping reproduction at an appropriate timing without causing the user to feel uncomfortable.

The head mounted display of the present invention includes an image, is mounted and playback unit you play the composed content data of a plurality of chapters, the user's head so as to be positioned in front of the user's eye A display unit that displays the image included in the content data reproduced by the reproduction unit, and when the reproduction of the content data by the reproduction unit is automatically stopped at a predetermined stop time, among the plurality of chapters A control unit that corrects the stop time so as to stop the reproduction of the content data at the start or end of the chapter corresponding to the predetermined stop time .

Preferably, the control unit, when the predetermined stop time is before the center point of the chapter corresponding to the predetermined stop time, the content data at the start point of the chapter corresponding to the predetermined stop time. When the predetermined stop time is after the center point of the chapter corresponding to the predetermined stop time, the end point of the chapter corresponding to the predetermined stop time is corrected. The stop time may be corrected so as to stop the reproduction of the content data .

Preferably, a recognition unit that recognizes a usage history of the display unit by the user may be provided, and the control unit may determine the predetermined stop time based on the usage history.

Preferably, the recognizing unit uses at least one of the number of times of use by the user, a use time in one use, a cumulative use time, and an adjustment required time of the display unit before use. It may be recognized as a history.

Further, preferably, an acquisition unit for acquiring information of the user, on the basis of the user information, and a determination unit that determines an observable time of the image by the user, the control unit, the observable The predetermined stop time may be determined according to time.

In a preferred embodiment, the acquisition unit, at least one of the sex and age of the user may be acquired as the information of the user.

According to the present invention, it is possible to realize a head-mounted display capable of automatically stopping reproduction at an appropriate timing without causing the user to feel uncomfortable.

Claims (13)

In a playback device for playing back content data including at least one of audio and image,
A playback unit for playing back the content data;
And a control unit that corrects the stop time when the playback of the content data by the playback unit is automatically stopped at a predetermined stop time. The playback device according to claim 1,
The control unit corrects the stop time based on information of the content data to be played back by the playback unit. The playback device according to claim 2,
The playback device, wherein the control unit detects a scene change in the content data and corrects the stop time based on a scene change position. The playback device according to claim 2,
The playback device, wherein the control unit corrects the stop time based on control information of the content data incidental to the content data. The playback device according to claim 1,
A reception unit that receives a user instruction to extend the predetermined stop time;
The playback device, wherein the control unit corrects the stop time based on the user instruction. The playback apparatus according to claim 5, wherein
The playback apparatus receives the user instruction within a predetermined time including at least one of before and after the predetermined stop time. The playback device according to claim 1,
A display unit for displaying the image;
A recognition unit for recognizing the use history of the display unit,
The control unit determines the predetermined stop time based on the usage history. The playback device according to claim 7, wherein
The recognition unit recognizes, as the use history, at least one of a use count, a use time in one use, a cumulative use time, and an adjustment required time of the display unit before use. Playback device. The playback device according to claim 1,
A display unit for displaying the image;
An acquisition unit for acquiring user information;
A determination unit that determines the observable time of the image by the user based on the user information;
The control unit determines the predetermined stop time according to the observable time. The playback device according to claim 9, wherein
The acquisition unit acquires, as the user information, whether or not the user has experience using an eyepiece optical device. The playback device according to claim 10, wherein
The acquisition unit acquires at least one of the sex and age of the user as the user information. The playback device according to any one of claims 1 to 11,
A playback apparatus, further comprising: a selection unit that selects whether to perform control by the control unit based on an instruction from the user. The playback device according to any one of claims 1 to 12,
At least one of a display unit that is mounted on the user's head and projects a virtual image in front of the user's eyes and an audio output unit that outputs audio;
A playback apparatus comprising: a mounting unit capable of mounting at least one of the display unit and the audio output unit on the user's head.

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